Will the brembo calipers/rotors from an 05 350z nismo fit on my 05 g35x? A friend is offering me the brakes from his 350z nismo for my 05 g35x. He installed some variety of BBK.

 

They will bolt right on. You will have to modify the rear dust shield, but that is an easy fix. Just use some tin snips and cut small lines in the dust shield about 1/4-1/2" apart and then use pliers to lift those cut edges up. Make sure you get the rear caliper bolts from the Brembo's, you can re-use your bolts because they are a different thread pitch. The front's are the same.

 

i thought the 05-06 got different brakes which resulted in larger rotors and diff caliper design.

 

You are correct, excluding the 05 x. But they all still interchange. I ran 05 coupe brakes before I went brembo.